Resumen de Investigación
Analyzed using Evidence Intelligence™

Laughter yoga improves glycemic control in type 2 diabetes

Última actualización 11 de julio de 2026

Key finding

HbA1c decreased by 0.31% (between-group difference: -0.31%; 95% CI -0.54, -0.09)

A 12-week laughter yoga program was found to be feasible for individuals with type 2 diabetes and demonstrated improvements in glycemic control.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

A plain-language read of the study’s main message and where it applies.

Study focus

A 12-week laughter yoga program was found to be feasible for individuals with type 2 diabetes and demonstrated improvements in glycemic control.

Clinical relevance

Improving glycemic control is crucial for managing type 2 diabetes and reducing the risk of complications. This study suggests that laughter yoga could be a viable and enjoyable intervention to enhance both physical and emotional health in this population.

Keep in mind

The effectiveness of the laughter yoga program remains unclear due to limited sample size. Potential biases in self-reported measures could affect outcome validity. The generalizability of findings may be limited to specific demographic groups.

Published in

Referencia de la Revista

Publication details and source links for this paper.

Mayumi H, Tetsuya O, Yawei W, et al. A 12-week laughter yoga program is feasible for individuals with type 2 diabetes and improves glycemic control. Frontiers in Endocrinology. 2023;14:1148468. doi:10.3389/fendo.2023.1148468

Efectos Principales

HbA1c decreased by 0.31% (p = 0.008), indicating improved glycemic control.

Positive affect increased by 0.62 points, suggesting enhanced emotional well-being.

Sleep duration tended to increase by 0.4 hours, although not statistically significant (p = 0.080).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Laughter Yoga Program and Change in Positive Affect Score, HbA1c, Total sleep time measured in minutes.

Primary intervention

Laughter Yoga Program

Primary outcomes

  • Change in Positive Affect Score
  • HbA1c
  • Total sleep time measured in minutes

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

3
Evidence pairs
3
Relationships
1
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 59

1

Related topics

3

Evidence pairs

310

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 3 evidence relationships
  • Includes primary outcome data
  • Linked to 1 direct semantic evidence topic

Topic contributions

Evidence topic

Contributes evidence

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Evidencia principal

Tema de evidencia

HbA1c Reduction

matched_outcome

Core evidence

Study findings

The primary outcomes reported in this study.

Change in Positive Affect Score

Laughter Yoga Program → Change in Positive Affect Score

Laughter Yoga Program → Change in Positive Affect Score

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Estudios de apoyo: Basado en 1 estudio
Add to Evidence Tracker

HbA1c

Laughter Yoga Program → HbA1c

Laughter Yoga Program → HbA1c

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Estudios de apoyo: Basado en 1 estudio
Add to Evidence Tracker

Total sleep time measured in minutes

Laughter Yoga Program → Total sleep time measured in minutes

Laughter Yoga Program → Total sleep time measured in minutes

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Estudios de apoyo: Basado en 1 estudio
Add to Evidence Tracker

Evidence Library

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evidence suggest

La Evidencia Sugiere

  • HbA1c levels decreased by 0.31%, indicating better blood sugar control.
  • Participants reported a 0.62-point increase in positive affect.
  • Sleep duration increased by 0.4 hours, suggesting improved rest.
who this applies

A quién se aplica

  • Adults diagnosed with type 2 diabetes.
  • Individuals seeking alternative lifestyle interventions for diabetes management.
keep in mind

Tener en Cuenta

  • Results may not apply to all individuals with type 2 diabetes.
  • Further research is needed to confirm long-term effects.
  • The study did not include a diverse population, limiting broader applicability.
between the lines

Entre Líneas

  • The effectiveness of the laughter yoga program remains unclear due to limited sample size.
  • Potential biases in self-reported measures could affect outcome validity.
  • The generalizability of findings may be limited to specific demographic groups.

Evidence Library

Build your evidence library

Save research, organize studies, and quickly find important evidence again.

Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Laughter Yoga Program and HbA1c, Laughter Yoga Program and Change in Positive Affect Score.

Relaciones de evidencia relacionadas

Explore in Evidence Explorer

This study contributes to the evidence on the following intervention-outcome relationships.

Behavioral & Lifestyle

Laughter Yoga Program → HbA1c

Behavioral & Lifestyle

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Estudios de apoyo: Basado en 1 estudio
View evidence

Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

Does Laughter Yoga Program improve change in positive affect score?

Emerging Evidence

Laughter Yoga Program appears to improve Change in Positive Affect Score.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Change in Positive Affect Score

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Laughter Yoga Program improve HbA1c?

Emerging Evidence

Laughter Yoga Program appears to improve HbA1c.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    HbA1c

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Laughter Yoga Program improve total sleep time measured in minutes?

Emerging Evidence

Current evidence does not show a clear benefit of Laughter Yoga Program for Total sleep time measured in minutes.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Total sleep time measured in minutes

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
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